To convert hectares to US survey acres, multiply the value by 2.47104. To go the other way, multiply US survey acres by 0.404687 to get hectares.
| Hectares (ha) | US Survey Acres (ac (US)) |
|---|---|
| 1 ha | 2.47104 ac (US) |
| 2 ha | 4.94209 ac (US) |
| 5 ha | 12.3552 ac (US) |
| 10 ha | 24.7104 ac (US) |
| 20 ha | 49.4209 ac (US) |
| 50 ha | 123.552 ac (US) |
| 100 ha | 247.104 ac (US) |
| 500 ha | 1,235.52 ac (US) |
| 1,000 ha | 2,471.04 ac (US) |
Hectare (ha). A hectare is 10,000 square meters (100 m × 100 m), the world's standard unit for farmland and large plots.
US survey acre (ac (US)). The US survey acre is 43,560 square US survey feet (4,046.8726 m²), used in US land records.
There are 2.47104 US survey acres in one hectare.
Multiply the number of hectares by 2.47104. For example, 10 hectares equal 24.7104 US survey acres.
One US survey acre equals 0.404687 hectares.